Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <unotools/closeveto.hxx>
      21             : 
      22             : #include <com/sun/star/util/XCloseable.hpp>
      23             : 
      24             : #include <cppuhelper/implbase1.hxx>
      25             : #include <rtl/ref.hxx>
      26             : #include <tools/diagnose_ex.h>
      27             : 
      28             : namespace utl
      29             : {
      30             : 
      31             :     using ::com::sun::star::uno::Reference;
      32             :     using ::com::sun::star::uno::XInterface;
      33             :     using ::com::sun::star::uno::UNO_QUERY;
      34             :     using ::com::sun::star::uno::UNO_QUERY_THROW;
      35             :     using ::com::sun::star::uno::UNO_SET_THROW;
      36             :     using ::com::sun::star::uno::Exception;
      37             :     using ::com::sun::star::uno::RuntimeException;
      38             :     using ::com::sun::star::uno::Any;
      39             :     using ::com::sun::star::uno::makeAny;
      40             :     using ::com::sun::star::uno::Sequence;
      41             :     using ::com::sun::star::uno::Type;
      42             :     using ::com::sun::star::util::XCloseable;
      43             :     using ::com::sun::star::util::XCloseListener;
      44             :     using ::com::sun::star::util::CloseVetoException;
      45             :     using ::com::sun::star::lang::EventObject;
      46             : 
      47             :     //= CloseListener_Impl
      48             : 
      49             :     typedef ::cppu::WeakImplHelper1 <   XCloseListener
      50             :                                     >   CloseListener_Base;
      51             :     class CloseListener_Impl : public CloseListener_Base
      52             :     {
      53             :     public:
      54           9 :         explicit CloseListener_Impl(bool const bHasOwnership)
      55           9 :             : m_bHasOwnership(bHasOwnership)
      56             :         {
      57           9 :         }
      58             : 
      59             :         // XCloseListener
      60             :         virtual void SAL_CALL queryClosing( const EventObject& Source, sal_Bool GetsOwnership ) throw (CloseVetoException, RuntimeException, std::exception) SAL_OVERRIDE;
      61             :         virtual void SAL_CALL notifyClosing( const EventObject& Source ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      62             : 
      63             :         // XEventListener
      64             :         virtual void SAL_CALL disposing( const EventObject& Source) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      65             : 
      66           8 :         bool hasOwnership() const { return m_bHasOwnership; }
      67             : 
      68             :     protected:
      69          16 :         virtual ~CloseListener_Impl()
      70           8 :         {
      71          16 :         }
      72             : 
      73             :     private:
      74             :         bool    m_bHasOwnership;
      75             :     };
      76             : 
      77           0 :     void SAL_CALL CloseListener_Impl::queryClosing( const EventObject& i_source, sal_Bool i_deliverOwnership ) throw (CloseVetoException, RuntimeException, std::exception)
      78             :     {
      79             :         (void)i_source;
      80             : 
      81           0 :         if ( !m_bHasOwnership )
      82           0 :             m_bHasOwnership = i_deliverOwnership;
      83             : 
      84           0 :         throw CloseVetoException();
      85             :     }
      86             : 
      87           0 :     void SAL_CALL CloseListener_Impl::notifyClosing( const EventObject& i_source ) throw (RuntimeException, std::exception)
      88             :     {
      89             :         (void)i_source;
      90           0 :     }
      91             : 
      92           0 :     void SAL_CALL CloseListener_Impl::disposing( const EventObject& i_source ) throw (RuntimeException, std::exception)
      93             :     {
      94             :         (void)i_source;
      95           0 :     }
      96             : 
      97             :     //= CloseVeto_Data
      98             : 
      99          17 :     struct CloseVeto_Data
     100             :     {
     101             :         Reference< XCloseable >                 xCloseable;
     102             :         ::rtl::Reference< CloseListener_Impl >  pListener;
     103             :     };
     104             : 
     105             :     //= operations
     106             : 
     107             :     namespace
     108             :     {
     109             : 
     110           9 :         void lcl_init( CloseVeto_Data& i_data, const Reference< XInterface >& i_closeable,
     111             :                 bool const hasOwnership)
     112             :         {
     113           9 :             i_data.xCloseable.set( i_closeable, UNO_QUERY );
     114          18 :             ENSURE_OR_RETURN_VOID( i_data.xCloseable.is(), "CloseVeto: the component is not closeable!" );
     115             : 
     116           9 :             i_data.pListener = new CloseListener_Impl(hasOwnership);
     117           9 :             i_data.xCloseable->addCloseListener( i_data.pListener.get() );
     118             :         }
     119             : 
     120           8 :         void lcl_deinit( CloseVeto_Data& i_data )
     121             :         {
     122           8 :             if ( !i_data.xCloseable.is() )
     123           8 :                 return;
     124             : 
     125           8 :             i_data.xCloseable->removeCloseListener( i_data.pListener.get() );
     126           8 :             if ( i_data.pListener->hasOwnership() )
     127             :             {
     128             :                 try
     129             :                 {
     130           8 :                     i_data.xCloseable->close( sal_True );
     131             :                 }
     132           0 :                 catch( const CloseVetoException& ) { }
     133           0 :                 catch( const Exception& )
     134             :                 {
     135             :                     DBG_UNHANDLED_EXCEPTION();
     136             :                 }
     137             :             }
     138             :         }
     139             :     }
     140             : 
     141             :     //= CloseVeto
     142           9 :     CloseVeto::CloseVeto(const Reference< XInterface >& i_closeable,
     143             :             bool const hasOwnership)
     144           9 :         : m_xData(new CloseVeto_Data)
     145             :     {
     146           9 :         lcl_init(*m_xData, i_closeable, hasOwnership);
     147           9 :     }
     148             : 
     149          16 :     CloseVeto::~CloseVeto()
     150             :     {
     151           8 :         lcl_deinit(*m_xData);
     152           8 :     }
     153             : 
     154             : } // namespace utl
     155             : 
     156             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */